Alonso, G., and S. P. Dhakal. “Community Partnership for Ecotourism Based on an Environmental Education Program for Sustainable Development in Sierra De Huautla, México”. Utopía Y Praxis Latinoamericana, Vol. 14, no. 44, 1, https://produccioncientifica.luz.edu.ve/index.php/utopia/article/view/2842.